CN110004992A - It is a kind of can real-time monitoring bored pile construction device and its application method - Google Patents
It is a kind of can real-time monitoring bored pile construction device and its application method Download PDFInfo
- Publication number
- CN110004992A CN110004992A CN201910318461.6A CN201910318461A CN110004992A CN 110004992 A CN110004992 A CN 110004992A CN 201910318461 A CN201910318461 A CN 201910318461A CN 110004992 A CN110004992 A CN 110004992A
- Authority
- CN
- China
- Prior art keywords
- pile casting
- steel pile
- steel
- mud
- casting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
- E02D5/385—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds with removal of the outer mould-pipes
Abstract
The present invention discloses a kind of bored pile construction casing, it include steel pile casting (1), it is characterized by: being equipped with positioning system B and mud property detection system A on steel pile casting (1), the positioning system B includes system for detecting verticality and GPS positioning system, bored pile construction casing of the present invention, it can not only provide and accurately position, reduce the number of manual measurement, measurement error is avoided to cause pile foundation deviation, and the performance of slurry coat method can be measured, prevent mud property variation from having an impact to the construction of bored concrete pile, effectively prevention pile foundation deviation, collapse hole etc., guarantee construction quality.
Description
Technical field
The present invention relates to a kind of energy real-time monitoring bored pile construction device and its application methods, belong to construction project
Technical field of construction.
Background technique
Pile foundation is bridge, most common base form is built in room, and cast-in-situ bored pile is that construction project pile foundation is most wide now
General construction method, common pile foundation bore mode is percussive drilling, rotary digging drilling hole, convolution drilling etc., according to geological conditions, hole
The combined factors such as deep, aperture and construction period determine, although cast-in-situ bored pile is a relatively mature construction technology,
The phenomenon that practice of construction engineering pile foundation deviation, still takes place frequently.
There is the reason of pile foundation deviation phenomenon both at home and abroad in comprehensive analysis, is divided into following several: early period positioning fault, pile foundation at
Hole mode is wrong, drilling construction is lack of standardization, position inaccurate and precautionary measures are ineffective.
Now it is badly in need of a kind of bored pile construction casing, can not only provides and accurately position, reduces time of manual measurement
Number, avoids measurement error from causing pile foundation deviation, and can measure the performance of slurry coat method, prevents mud property variation to perfusion
The construction of stake has an impact, and effectively prevents pile foundation deviation, collapse hole etc., guarantees construction quality.
Summary of the invention
Pile foundation deviation, collapse hole etc. can effectively be prevented the technical problem to be solved in the present invention is to provide a kind of, guarantee construction matter
The real-time monitoring bored pile construction device and its application method of amount, can be with overcome the deficiencies in the prior art.
The technical scheme is that a kind of energy real-time monitoring bored pile construction device, it includes steel pile casting,
The barrel of steel pile casting is equipped with positioning device, testing apparatus for verticality and mud property detection system, positioning device, verticality inspection
It surveys device and mud property detection system is connect with computer, computer is being calculated by wired or wireless connection monitoring platform
Machine is equipped with the alarm threshold value of positioning, gradient and mud detected value.
Energy real-time monitoring bored pile construction above-mentioned is that the positioning device is GPS, and described is vertical with device
Degree detection device is inclinometer.
Energy real-time monitoring bored pile construction above-mentioned is that the mud property detection system is mud balance with device
Meter, torque sensor, liquid level sensor, pH value measuring instrument.
Energy real-time monitoring bored pile construction above-mentioned is that the steel pile casting material is Q235 with device, and wall thickness is
10mm, the diameter ratio of steel pile casting, which is explained clearly, sets the big 0.1-0.2m of stake holes diameter.
It is above-mentioned can real-time monitoring bored pile construction be that return port is equipped on steel pile casting with device, return port away from
25-40cm at the top of steel pile casting.
It is above-mentioned can real-time monitoring bored pile construction device application method the following steps are included:
A. setting-out: according to axis and pile layout situation, establishing SURVEYING CONTROL NETWORK in the venue, then according to control net
Each stake site of measuring；
B. drill seat in the plane: arrange drilling machine using each stake site, must be consolidated when drilling machine is in place, vertically, horizontal, accurate positioning, bore
Head center and stake position errors of centration are not more than 10mm.
C buries steel pile casting
(1) in the case where measuring the guidance with construction personnel, soil is taken out in drilling machine apex point align piles position center, drilling machine rotary digging to 2-10 depth
After transfer steel pile casting, observation takes soil nature matter, and steel pile casting length is that sticky soil thickness is increased obtained by the 0.3-0.4m on ground out；Steel
Casing diameter 0.1-0.2m bigger than stake holes diameter；
(2) during embedded steel pile casting, stake position information, the verticality shown according to steel pile casting adjusts steel pile casting position in real time,
And the control of gradient of protecting tube embedding, within 1%, steel pile casting surrounding is backfilled with clay after determining, compaction in layers；
After transferring steel pile casting, verification steel pile casting institute measured center longitude and latitude, tolerance, mud property norm controlling value technology ginseng
Number,
D. it drills: after steel pile casting is installed, starting normal drill, the positioning device installed on steel pile casting in boring procedure is hung down
Straightness detecting device and mud property detection system monitor location information, inclination information, slurry coat method performance in real time, if detecting
Data exceed threshold value, computer data alarm, then immediately stop drilling, after being rectified a deviation for abnormal conditions, normal drill,
Until drilling is to requiring hole depth；
E. borehole cleaning
(1) borehole cleaning: stop drilling depth behind whole hole, 5 to 15min are persistently pumped using slush pump, make bottom hole sediment with mud
Until basic exclusion reaches borehole cleaning requirement；
(2) secondary pile hole cleaning: wait place steel reinforcement cage and conduit it is ready after, recycled, inner hole deposition slag band portalled outer using mud；
During borehole cleaning, mud property index and mud water level in real time inspection display system, exception occur should adjust in time
It is whole, avoid collapse hole phenomenon during borehole cleaning；
F. it lifts framework of steel reinforcement: the reinforcing bar cage hoisting processed being entered into hole, and is fixedly positioning, guarantee that cage top absolute altitude meets specification and wants
It asks, prevents from sinking during pouring underwater concrete or floating；
G. pouring underwater concrete: before pouring underwater concrete, slump should be first detected, and observes mud property and refers to
Mark-specific gravity is 1.1-1.2；According to the sequence construction for installing conduit, the first batch of concrete of perfusion, continuous pouring to stake top；
H. it extracts casing: after the completion of underwater gliders, before underwater concrete initial set, steel pile casting being extracted in time.
Compared with the prior art, steel pile casting is arranged during existing bored pile construction in the present invention, by protecting in steel
System for detecting verticality, GPS positioning system and mud property detection system are installed on cylinder, and above system and computer are connected
It connects, not only can provide and accurately position, reduce the number of manual measurement, measurement error is avoided to cause pile foundation deviation, and
And the performance of slurry coat method can be measured, prevent mud property variation from having an impact to the construction of bored concrete pile.
For Q235, it can avoid getting rusty steel pile casting material, and then can reuse for a long time, and wall thickness is that 10mm can expire
The intensity of sufficient normal drill filling pile construction process is equipped with return port at the top of away from steel pile casting at 25-40cm, mud is facilitated to return
Stream.
The GPS positioning connecting with computer includes detection longitude and latitude and GPS tolerance, the GPS tolerance are
The deviation size that construction location and design position are calculated by GPS positioning longitude and latitude, design pile foundation center longitude, if exceeding
Deviation, then system alarm, in order to adjust stake position in work progress；Testing apparatus for verticality is connect with computer, such deviational survey
The data that device is drawn can not only reduce manual measurement by computer disposal, but also to deviation in real time as it can be seen that being conducive to fill
Phenomena such as infusing the process control in pile driving construction, can effectively avoid pile foundation deviation, pile incline.
Mud property detection device includes mud weight indicator, torque sensor, liquid level sensor, pH value measuring instrument and record
Analyzer, measuring instrument are connect with recorder analyser by data line, and system and device in this way can quickly measure retaining wall
The indexs such as specific gravity, viscosity, liquid level, the pH value of mud, and real-time display data, can not only reduce artificial detection, Er Qieke
Hung for steel reinforcement cage, concreting provides guidance, effectively avoid collapse hole phenomenon.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is operation schematic diagram of the invention.
Specific real-time mode
For real-time example 1. as shown in Figure 1, energy real-time monitoring bored pile construction device, it includes steel pile casting 1, the steel
1 material of casing is Q235, wall thickness 10mm, and the diameter ratio of steel pile casting 1, which is explained clearly, sets the big 0.1-0.2m of stake holes diameter.In steel pile casting 1
Barrel be equipped with positioning device 2, testing apparatus for verticality 3 and mud property detection system 4, positioning device 2, measuring for verticality
Device 3 and mud property detection system 4 are connect with computer 5, and computer 5 is being counted by wired or wireless connection monitoring platform
Calculation machine 5 is equipped with the alarm threshold value of positioning, gradient and mud detected value.Positioning device 2 used is GPS, preferably Beidou GPS
High-accuracy position system, testing apparatus for verticality 3 used are inclinometer, and preferably laser inclinometer or preferred high accuracy is scalable
Stationary slope level；Mud property detection system 4 used is mud weight indicator, torque sensor detection drilling fluid rheology and lubrication
Property, liquid level sensor, pH value measuring instrument.Because 1 face height ground face of steel pile casting is equipped on steel pile casting 1 not influence to flow back
Return port 6, return port 6 is away from 1 top 25-40cm of steel pile casting.
The application method of the energy real-time monitoring bored pile construction device, comprising the following steps:
A. setting-out: according to axis and pile layout situation, establishing SURVEYING CONTROL NETWORK in the venue, then according to control net
Each stake site of measuring；
B. drill seat in the plane: arrange drilling machine using each stake site, must be consolidated when drilling machine is in place, vertically, horizontal, accurate positioning, bore
Head center and stake position errors of centration are not more than 10mm.
C buries steel pile casting
(1) in the case where measuring the guidance with construction personnel, soil is taken out in drilling machine apex point align piles position center, drilling machine rotary digging to 2-10 depth
After transfer steel pile casting, observation takes soil nature matter, and steel pile casting length is that sticky soil thickness is increased obtained by the 0.3-0.4m on ground out；Steel
Casing diameter 0.1-0.2m bigger than stake holes diameter；
(2) during embedded steel pile casting, stake position information, the verticality shown according to steel pile casting adjusts steel steel pile casting position in real time
It sets, and the control of gradient of protecting tube embedding, within 1%, steel pile casting surrounding is backfilled with clay after determining, compaction in layers；
After transferring steel pile casting, verification steel pile casting institute measured center longitude and latitude, tolerance, mud property norm controlling value technology ginseng
Number,
D. it drills: after steel pile casting is installed, starting normal drill, the positioning device 2 installed on steel pile casting in boring procedure is hung down
Straightness detecting device 3 and mud property detection system 4 monitor location information, inclination information, slurry coat method performance in real time, if detection
The data arrived exceed threshold value, and computer data alarm then stops drilling immediately, normal to bore after being rectified a deviation for abnormal conditions
Hole, until drilling is to requiring hole depth；
E. borehole cleaning
(1) borehole cleaning: stop drilling depth behind whole hole, 5 to 15min are persistently pumped using slush pump, make bottom hole sediment with mud
Until basic exclusion reaches borehole cleaning requirement；
(2) secondary pile hole cleaning: wait place steel reinforcement cage and conduit it is ready after, recycled, inner hole deposition slag band portalled outer using mud；
During borehole cleaning, mud property index and mud water level in real time inspection display system, exception occur should adjust in time
It is whole, avoid collapse hole phenomenon during borehole cleaning；
F. it lifts framework of steel reinforcement: the reinforcing bar cage hoisting processed being entered into hole, and is fixedly positioning, guarantee that cage top absolute altitude meets specification and wants
It asks, prevents from sinking during pouring underwater concrete or floating；
G. pouring underwater concrete: before pouring underwater concrete, slump should be first detected, and observes mud property and refers to
Mark-specific gravity is 1.1-1.2；According to the sequence construction for installing conduit, the first batch of concrete of perfusion, continuous pouring to stake top；
H. it extracts casing: after the completion of underwater gliders, before underwater concrete initial set, steel pile casting being extracted in time.
Claims (6)
1. a kind of energy real-time monitoring bored pile construction device, it includes steel pile casting (1), it is characterised in that: in steel pile casting
(1) barrel is equipped with positioning device (2), testing apparatus for verticality (3) and mud property detection system (4), positioning device
(2), testing apparatus for verticality (3) and mud property detection system (4) are connect with computer (5), computer (5) by wired or
It is wirelessly connected monitoring platform, the alarm threshold value of positioning, gradient and mud detected value is equipped on computer (5).
2. energy real-time monitoring bored pile construction device according to claim 1, it is characterised in that: the positioning
Device (2) is GPS, and the testing apparatus for verticality (3) is inclinometer.
3. energy real-time monitoring bored pile construction device according to claim 1, it is characterised in that: the mud
Energy detection system (4) is mud weight indicator, torque sensor, liquid level sensor, pH value measuring instrument.
4. energy real-time monitoring bored pile construction device according to claim 1, it is characterised in that: the steel shield
Cylinder (1) material is Q235, wall thickness 10mm, and the diameter ratio of steel pile casting (1), which is explained clearly, sets the big 0.1-0.2m of stake holes diameter.
5. energy real-time monitoring bored pile construction device according to claim 1, it is characterised in that: in steel pile casting
(1) return port (6) are equipped with, return port (6) is away from 25-40cm at the top of steel pile casting (1).
6. using the application method of energy real-time monitoring bored pile construction device described in claim 1-5 any one, packet
Include following steps:
A. setting-out: according to axis and pile layout situation, establishing SURVEYING CONTROL NETWORK in the venue, then surveys according to control net
Put each stake site；
B. drill seat in the plane: arrange drilling machine using each stake site, must be consolidated when drilling machine is in place, vertically, horizontal, accurate positioning, bore
Head center and stake position errors of centration are not more than 10mm;
C buries steel pile casting
(1) in the case where measuring the guidance with construction personnel, soil is taken out in drilling machine apex point align piles position center, drilling machine rotary digging to 2-10 depth
After transfer steel pile casting, observation takes soil nature matter, and steel pile casting length is the 0.3-0.4m that sticky soil thickness increases ground out；Steel pile casting
Diameter 0.1-0.2m bigger than stake holes diameter；
(2) during embedded steel pile casting, stake position information, the verticality shown according to steel pile casting adjusts steel steel pile casting position in real time
It sets, and the control of gradient of protecting tube embedding, within 1%, steel pile casting surrounding is backfilled with clay after determining, compaction in layers；
After transferring steel pile casting, verification steel pile casting institute measured center longitude and latitude, tolerance, mud property norm controlling value technology ginseng
Number,
D. it drills: after steel pile casting is installed, starting normal drill, the positioning device (2) installed on steel pile casting in boring procedure,
Testing apparatus for verticality (3) and mud property detection system (4) monitor location information, inclination information, slurry coat method performance in real time,
If the data detected exceed threshold value, computer data alarm then stops drilling immediately, after being rectified a deviation for abnormal conditions,
Normal drill, until drilling is to requiring hole depth；
E. borehole cleaning
(1) borehole cleaning: stop drilling depth behind whole hole, 5 to 15min are persistently pumped using slush pump, make bottom hole sediment with mud
Until basic exclusion reaches borehole cleaning requirement；
(2) secondary pile hole cleaning: wait place steel reinforcement cage and conduit it is ready after, recycled, inner hole deposition slag band portalled outer using mud；
During borehole cleaning, mud property index and mud water level in real time inspection display system, exception occur should adjust in time
It is whole, avoid collapse hole phenomenon during borehole cleaning；
F. it lifts framework of steel reinforcement: the reinforcing bar cage hoisting processed being entered into hole, and is fixedly positioning, guarantee that cage top absolute altitude meets specification and wants
It asks, prevents from sinking during pouring underwater concrete or floating；
G. pouring underwater concrete: before pouring underwater concrete, slump should be first detected, and observes mud property and refers to
Mark-specific gravity is 1.1-1.2；According to the sequence construction for installing conduit, the first batch of concrete of perfusion, continuous pouring to stake top；
H. it extracts casing: after the completion of underwater gliders, before underwater concrete initial set, steel pile casting being extracted in time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910318461.6A CN110004992A (en) | 2019-04-19 | 2019-04-19 | It is a kind of can real-time monitoring bored pile construction device and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910318461.6A CN110004992A (en) | 2019-04-19 | 2019-04-19 | It is a kind of can real-time monitoring bored pile construction device and its application method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110004992A true CN110004992A (en) | 2019-07-12 |
Family
ID=67173134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910318461.6A Pending CN110004992A (en) | 2019-04-19 | 2019-04-19 | It is a kind of can real-time monitoring bored pile construction device and its application method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110004992A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110820728A (en) * | 2019-10-11 | 2020-02-21 | 中电建十一局工程有限公司 | Cast-in-situ bored pile construction method for penetrating underground deep-buried waste pipeline |
| CN111236221A (en) * | 2020-01-20 | 2020-06-05 | 中利建设集团有限公司 | Construction process of rotary digging pile |
| CN111719560A (en) * | 2020-05-29 | 2020-09-29 | 浙大城市学院 | Construction method of pile foundation concrete pouring guide pipe control device |
| CN113373910A (en) * | 2021-05-26 | 2021-09-10 | 东莞嘉誉诚建设基础工程有限公司 | Pile casing structure and construction method thereof applied to cast-in-place pile hole digging and cast-in-place forming |
| CN113832988A (en) * | 2021-09-24 | 2021-12-24 | 中电建路桥集团有限公司 | Self-correcting recyclable steel casing system for verticality in karst cave area and correcting method |
| CN113981977A (en) * | 2021-12-09 | 2022-01-28 | 中铁二十二局集团第四工程有限公司 | Pile top elevation control device for drilling and pouring pile foundation |
| CN114164824A (en) * | 2021-12-10 | 2022-03-11 | 中国建筑第四工程局有限公司 | Long steel pile casing cast-in-place pile for micro-disturbance of peripheral stratum and application |
| CN115680490A (en) * | 2023-01-05 | 2023-02-03 | 山西冶金岩土工程勘察有限公司 | Cast-in-place pile grooving device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102995632A (en) * | 2012-11-21 | 2013-03-27 | 中国石油天然气集团公司 | Cast-in-situ bored pile technique |
| CN105002890A (en) * | 2015-07-15 | 2015-10-28 | 杭州江润科技有限公司 | Abyssal region cast-in-situ bored pile nondestructive assembly and disassembly double-layer steel casing group structure and construction method |
| CN107761717A (en) * | 2016-08-15 | 2018-03-06 | 中国二十冶集团有限公司 | The construction method of sand content in mud is controlled in filling pile construction |
| CN109457691A (en) * | 2018-12-27 | 2019-03-12 | 秭归县交通运输局 | Deep-water bored pile pore-forming integrated monitoring device and its control method |
-
2019
- 2019-04-19 CN CN201910318461.6A patent/CN110004992A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102995632A (en) * | 2012-11-21 | 2013-03-27 | 中国石油天然气集团公司 | Cast-in-situ bored pile technique |
| CN105002890A (en) * | 2015-07-15 | 2015-10-28 | 杭州江润科技有限公司 | Abyssal region cast-in-situ bored pile nondestructive assembly and disassembly double-layer steel casing group structure and construction method |
| CN107761717A (en) * | 2016-08-15 | 2018-03-06 | 中国二十冶集团有限公司 | The construction method of sand content in mud is controlled in filling pile construction |
| CN109457691A (en) * | 2018-12-27 | 2019-03-12 | 秭归县交通运输局 | Deep-water bored pile pore-forming integrated monitoring device and its control method |
Non-Patent Citations (1)
| Title |
|---|
| 黄宗襄等: "《超高层建筑设计与施工新进展》", 31 March 2014 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110820728A (en) * | 2019-10-11 | 2020-02-21 | 中电建十一局工程有限公司 | Cast-in-situ bored pile construction method for penetrating underground deep-buried waste pipeline |
| CN111236221A (en) * | 2020-01-20 | 2020-06-05 | 中利建设集团有限公司 | Construction process of rotary digging pile |
| CN111236221B (en) * | 2020-01-20 | 2021-11-16 | 中利建设集团有限公司 | Construction process of rotary digging pile |
| CN111719560A (en) * | 2020-05-29 | 2020-09-29 | 浙大城市学院 | Construction method of pile foundation concrete pouring guide pipe control device |
| CN111719560B (en) * | 2020-05-29 | 2021-06-29 | 浙大城市学院 | Construction method of pile foundation concrete pouring guide pipe control device |
| CN113373910A (en) * | 2021-05-26 | 2021-09-10 | 东莞嘉誉诚建设基础工程有限公司 | Pile casing structure and construction method thereof applied to cast-in-place pile hole digging and cast-in-place forming |
| CN113373910B (en) * | 2021-05-26 | 2022-07-01 | 东莞嘉誉诚建设基础工程有限公司 | Construction method for bored pile hole digging and pouring forming |
| CN113832988A (en) * | 2021-09-24 | 2021-12-24 | 中电建路桥集团有限公司 | Self-correcting recyclable steel casing system for verticality in karst cave area and correcting method |
| CN113981977A (en) * | 2021-12-09 | 2022-01-28 | 中铁二十二局集团第四工程有限公司 | Pile top elevation control device for drilling and pouring pile foundation |
| CN114164824A (en) * | 2021-12-10 | 2022-03-11 | 中国建筑第四工程局有限公司 | Long steel pile casing cast-in-place pile for micro-disturbance of peripheral stratum and application |
| CN115680490A (en) * | 2023-01-05 | 2023-02-03 | 山西冶金岩土工程勘察有限公司 | Cast-in-place pile grooving device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110004992A (en) | It is a kind of can real-time monitoring bored pile construction device and its application method | |
| CN104296721B (en) | Utilize the method that the deep soil settlement survey system based on satellite fix Yu hydrostatic leveling carries out deep soil settlement survey | |
| CN110424381A (en) | A kind of process for rotary digging drilling hole stake | |
| CN203846485U (en) | Long pile percussion drill hole forming construction device | |
| CN108149678A (en) | A kind of loess retaining wall does the construction method of operation pore-creating filling pile | |
| CN107246007B (en) | A kind of CFG of construction method | |
| CN104110028B (en) | A kind of dry operation boring is without the cast-in-place pile construction method of water law concrete perfusion | |
| CN1844589A (en) | Static mud protecting wall type drilling and boring process employing rotary drilling rig | |
| CN205748469U (en) | Many Information Field monitoring systems of a kind of reservoir landslide | |
| CN115045270A (en) | Method for constructing cast-in-situ bored pile | |
| CN107100213A (en) | Soil disturbance monitoring system and monitoring method of the bridge construction of pile groups to adjacent piles | |
| CN110306536A (en) | A kind of mud off pore-creating filling pile construction technology | |
| CN106643649A (en) | Method and device for measuring deep soil settlement and pore water pressure | |
| CN111472394B (en) | Device for rapidly measuring mud wall protection performance and using method | |
| CN110374094A (en) | A kind of construction method of mechanical hole perfusion post | |
| CN112187843A (en) | BIM-based system and method for automatically monitoring capital construction risks of deep foundation pit | |
| Baker Jr et al. | Caisson construction problems and correction in Chicago | |
| CN114164858B (en) | High-precision construction method for vertical column in cover-excavation type subway station | |
| CN115369860A (en) | Construction method of super-long isolation pile close to subway | |
| CN112197806B (en) | Method for installing equipment for monitoring movement deformation, hydrology and stress of coal mining subsidence area | |
| CN111519613B (en) | Construction method of test pile with ultra-buried depth in rock stratum | |
| CN211081834U (en) | Verticality detection tool for rotary drilling and pore forming | |
| CN109990759B (en) | Goaf deep stratum settlement monitoring device and manufacturing method thereof | |
| CN109113055B (en) | The construction method of composite pile | |
| CN207923674U (en) | A kind of rock stratum osmotic pressure detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190712 |
|
| RJ01 | Rejection of invention patent application after publication |